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Commit 818010da authored by oder_chiou@realtek.com's avatar oder_chiou@realtek.com Committed by Mark Brown
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ASoC: rt5514: Add the sanity checks of the buffer related address 



The patch add the sanity checks of the buffer related address to make sure
the addresses are valid.

Signed-off-by: default avatarOder Chiou <oder_chiou@realtek.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c2bf2525

sound/soc/codecs/rt5514-spi.c

+6 −1
Original line number Diff line number Diff line
@@ -173,8 +173,13 @@ static irqreturn_t rt5514_spi_irq(int irq, void *data) 
	rt5514_dsp->buf_rp = buf[0] | buf[1] << 8 | buf[2] << 16 |

				buf[3] << 24;



	if (rt5514_dsp->buf_rp % 8)

		rt5514_dsp->buf_rp = (rt5514_dsp->buf_rp / 8) * 8;



	rt5514_dsp->buf_size = rt5514_dsp->buf_limit - rt5514_dsp->buf_base;



	if (rt5514_dsp->buf_base && rt5514_dsp->buf_limit &&

		rt5514_dsp->buf_rp && rt5514_dsp->buf_size)

		schedule_delayed_work(&rt5514_dsp->copy_work, 0);



	return IRQ_HANDLED;